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Re: Custom and extending CDM to support other DRM systems

From: Glenn Adams <glenn@skynav.com>
Date: Fri, 30 Jan 2015 08:25:55 -0700
Message-ID: <CACQ=j+dnDpBBTMBoqqM16vhSjDVs8uWboApJ8mWNSMu6B9Wkow@mail.gmail.com>
To: Emmanuel Poitier <emmanuel.poitier@enman.fr>
Cc: "public-html-media@w3.org" <public-html-media@w3.org>
On Fri, Jan 30, 2015 at 8:20 AM, Emmanuel Poitier <emmanuel.poitier@enman.fr
> wrote:

>  Glenn,
>
> thanks for the answer, but I do believe that the EME draft is to be a
> standard at the end, so I would expect to have the CDM standardized as well
> as it is part of the EME system.\
>

No, it will not be. That is the final word from the WG.


>
> I won't mind if this thread can be the start of standardizing the CDM
> which is in my view essential to have conformance across browsers and to
> allow any DRM system to be used across all of them.
>

This is the wrong forum for such a thread. You need to build support among
the UA vendors, and if you fail to do that, you won't have any chance.


>
> Le 30/01/2015 15:58, Glenn Adams a écrit :
>
>
> On Fri, Jan 30, 2015 at 7:49 AM, Emmanuel Poitier <
> emmanuel.poitier@enman.fr> wrote:
>
>>  All,
>>
>> I am currently looking after the information on how to extend the CDM to
>> support other DRM systems, which is nowadays fixed and hardcoded for each
>> browsers (IE with PlayReady, Chrome with Widevine, Safari with FairPlay).
>> It would be nice to ensure the EME spec does provide information and also
>> how browsers would support that in an agnostic manner to ensure a non
>> fragmented market where the user does want to play a protected video
>> content whatever the browser he is using.
>>
>
>  I doubt if anything has changed on this front, but this type of
> specification was ruled out of scope for EME. EME uses the term and concept
> "CDM" only in a notional manner, and does not specify any concrete
> interface to such a component.
>
>  It is likely that interface and any mechanism for adding/extending UA
> supplied CDMs will remain UA specific, that is, until some organization
> steps forward to standardize it (assuming UA vendors are willing to do
> that... a dubitable proposition).
>
>
>
>>
>> Thanks in advance for any information and help you may provide.
>>
>> Best regards,
>> --
>> Emmanuel Poitier - Chief Executive Officer (CEO)
>> Enman
>>
>>   Telephone: +33 (0)2 54 67 15 38 <%2B33%20%280%292%2054%2067%2015%2038>
>>  Mobile: +33 (0)780 381 124  Email: emmanuel.poitier@enman.fr
>>  Web site:http://enman.fr
>>
>
>
> Best regards,
> --
> Emmanuel Poitier - Chief Executive Officer (CEO)
> Enman
>
>   Telephone: +33 (0)2 54 67 15 38
>  Mobile: +33 (0)780 381 124  Email: emmanuel.poitier@enman.fr
>  Web site:http://enman.fr
>
Received on Friday, 30 January 2015 15:26:44 UTC

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